One of the Big Tasks in the Eclipse+MC1322x project is that we need to support a JTAG protocol converter. Since the Segger JLink comes with the Freescale DSK this seems like a reasonable choice. (Tho' I might investigate an FTDI-based protocol converter, time permitting.)
I have made significant progress fixing the OpenOCD Jlink code, so that it works with the MC1322x. Since I'm new to the whole ARM world I don't quite know how to submit my patches. I'll post more when I succeed.